What Is The Output Of This Program? #include<stdio.h> #include<fcntl.h> Int Main() { Int Fd, Fd2, Ret; Fd = Open("san.c",O RDONLY); Ret = Close(fd2); Printf("%dn",ret); } A) 0 B) 1 C) 1 D) None Of The Mentioned

RenDC

» Interview Questions and Answers » Questions » News Feed » Tutorials » rendc.com

Question and Answer:

Home Search Pattern

⟩ What is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { int fd, fd2, ret; fd = open("san.c",O_RDONLY); ret = close(fd2); printf("%dn",ret); } a) 0 b) 1 c) -1 d) none of the mentioned

c) -1

Explanation:

The "close" system call closes a file descriptor but in the program "fd2″ in not a file descriptor. Hence close system call returns -1.

Output:

[root@localhost google]# gcc -o san san.c

[root@localhost google]# ./san

-1

[root@localhost google]#

Is this answer helpful?
0 Yes | 0 No

182 views

More Questions for you:

Explain What are roles? How can you implement roles?

Explain How can you specify the Archived log file name format and destination?

Explain How can we enable automatic archiving?

What is an oracle SNAPSHOT?

Describe two phases of Oracle Two-phase commit?

What is an Oracle SQL * NET?

Differentiate simple and complex, oracle snapshots?

How can you Enforce Referential Integrity in oracle snapshots?

What is an oracle snapshot log?

What is Oracle Two-Phase Commit?

rendc.org

Whether it is technological solutions or user-oriented innovations, We have put together for you the best sources of HR Interview Questions and Answers, Tech Ideas, and Programming Tutorials."

Quick Links:

Interview Question and Answer Questions Add Questions News-Feed Add Posts HR Hacks Tutorials Profile rendc.com memeph.com

Question and Answer:

Home Search Pattern

⟩ What is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { int fd, fd2, ret; fd = open("san.c",O_RDONLY); ret = close(fd2); printf("%dn",ret); } a) 0 b) 1 c) -1 d) none of the mentioned

Popular Answers:

* There is no answer to the above question yet.

More Questions for you:

Quick Links:

Question and Answer:

Home Search Pattern

⟩ What is the output of this program? #include<stdio.h> #include<fcntl.h> int main() { int fd, fd2, ret; fd = open("san.c",O_RDONLY); ret = close(fd2); printf("%dn",ret); } a) 0 b) 1 c) -1 d) none of the mentioned

Popular Answers:

* There is no answer to the above question yet.

More Questions for you:

BE THE FIRST TO KNOW

Quick Links: